topidx {topmodel} | R Documentation |
Calculation of the topographic index from a DEM raster
topidx(DEM, resolution)
DEM |
A matrix representing a DEM with equally sized pixels and equal NS and EW resolution |
resolution |
Resolution of the DEM (m) |
The function returns a raster with ln(a/tanb) values for each grid cell
Wouter Buytaert, University of Bristol